Aqueous suspensions of fine-particulate fillers, method for...

Details Aqueous suspensions of fine-particulate fillers, method for... Aqueous suspensions of fine-particulate fillers, method for...

C - Chemistry, Metallurgy

09

C

C09C 1/02 (2006.01) D21H 17/00 (2006.01) D21H 17/10 (2006.01) D21H 17/21 (2006.01) D21H 17/34 (2006.01) D21H 17/67 (2006.01) D21H 17/69 (2006.01)

Patent

CA 2729498

Aqueous suspensions of fine-particulate fillers that are at least partially lined with anionic lattices, wherein the suspensions are obtained from the treatment of aqueous suspensions of fine-particulate fillers with at least one anionic latex comprising at least one polymerized monomer containing a phosphonic or phosphoric acid group, preparation of the aqueous suspensions and use thereof as additives to paper materials in the production of paper containing fillers, carton containing fillers or corrugated cardboard containing fillers by de-watering the paper materials.

L'invention concerne des suspensions aqueuses de fines matières de charge, recouvertes au moins partiellement de micelles anioniques, ces suspensions étant obtenues par traitement de suspensions aqueuses de fines matières de charge au moyen d'au moins un latex anionique qui contient par polymérisation au moins un monomère présentant des groupes d'acide phosphonique et/ou phosphorique. L'invention porte également sur la production de ces suspensions aqueuses et sur leur utilisation comme additif à la pâte à papier lors de la production de papier, de carton ou de carton-pâte, contenant tous des matières de charge, par égouttage de la pâte à papier.

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